GB1163110A - Q-Switch for Laser System. - Google Patents

Q-Switch for Laser System.

Info

Publication number
GB1163110A
GB1163110A GB5770166A GB5770166A GB1163110A GB 1163110 A GB1163110 A GB 1163110A GB 5770166 A GB5770166 A GB 5770166A GB 5770166 A GB5770166 A GB 5770166A GB 1163110 A GB1163110 A GB 1163110A
Authority
GB
United Kingdom
Prior art keywords
mirror
time
dye
pumped
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5770166A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of GB1163110A publication Critical patent/GB1163110A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/113—Q-switching using intracavity saturable absorbers

Abstract

1,163,110. Lasers. UNITED STATES ATOMIC ENERGY COMMISSION. 23 Dec., 1966 [2 Feb., 1966], No. 57701/66. Heading H1C. A Q-switched laser system comprises a saturable dye and a rotating mirror. Ruby or neodymium doped glass rod 10 is pumped by xenon flash tube 12 in reflecting housing 22. One of the mirrors 16 of the optical cavity is rotatable in housing 30, which housing also includes a light source 32 and light detector 34 for synchronizing the firing of xenon flash tube 12 with the rotation of the mirror, Fig. 2 (not shown). In operation light 36a from source 32 is reflected from surface 17 when mirror 16 is in the position shown at T 1 , Fig. 3, and the signal from photo-diode 34 is fed to a pulse generator with a built-in time delay t d . At time T 3 the flash lamp 12 is energized for a period of t p during which time the laser rod is pumped. During the period from T 4 to T 5 whilst the rod is being pumped the reflectivity of the cavity is very low but as the mirror approaches the perpendicular just before the time T 5 some energy may be reflected back to the laser element. However, due to the saturable dye 18 the amount of light passing to the mirror is inhibited until the amount of energy absorbed is sufficient to bleach the dye. When this happens the mirror is perpendicular, time T 5 , and a pulse is obtained through partially transparent mirror 14. The dye solution may be cryptocyanine in methyl alcohol, vanadium phthalocyanine, and lithium phthalocyanine.
GB5770166A 1966-02-02 1966-12-23 Q-Switch for Laser System. Expired GB1163110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52498366A 1966-02-02 1966-02-02

Publications (1)

Publication Number Publication Date
GB1163110A true GB1163110A (en) 1969-09-04

Family

ID=24091442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5770166A Expired GB1163110A (en) 1966-02-02 1966-12-23 Q-Switch for Laser System.

Country Status (1)

Country Link
GB (1) GB1163110A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees